HJ HBS-4009 Automated Microplate Washer

Overview

The HJ HBS-4009 Automated Microplate Washer is an engineered solution for high-fidelity, reproducible washing of ELISA, cell-based assays, and immunoassay plates in regulated and research-intensive laboratory environments. Designed around a non-vacuum, non-positive-pressure fluid delivery architecture, the system eliminates reliance on membrane pumps or pressurized air manifolds—reducing cross-contamination risk, minimizing mechanical wear, and ensuring consistent liquid handling across diverse plate geometries. Its dual-head configuration (8-pin and 12-pin, both dual-row and fully detachable) supports parallel processing of strip wells and full 96-well formats while enabling precise adaptation to flat-bottom, U-bottom, and V-bottom microplates. With residual volume per well consistently maintained at ≤1 µL under validated operating conditions, the HBS-4009 meets the stringent carryover requirements of low-volume binding assays and high-sensitivity detection workflows.

Key Features

• Dual-configurable wash heads: Interchangeable 8-pin and 12-pin stainless-steel manifolds with symmetrical dual-row layout and tool-free end-cap removal for rapid cleaning and maintenance.
• Intelligent fluid control: Five-step adjustable injection pressure ensures gentle yet effective reagent delivery—even for fragile cell monolayers—while independent 0–9 second timing for dispense and aspiration enables fine-tuned protocol optimization.
• Extended soak capability: Programmable soak intervals from 0 seconds to 24 hours (with hh:mm:ss precision) support protocols requiring prolonged antigen-antibody dissociation or blocking step equilibration.
• Z-axis motorized head positioning: Enables dynamic vertical alignment to accommodate plate warpage, stack height variation, or custom labware—critical for long-term repeatability in GLP-compliant labs.
• Integrated safety enclosure: Polycarbonate transparent shield provides operator protection during operation while permitting real-time visual monitoring of wash cycles and fluid dynamics.
• Energy-aware operation: Supports 7×24 continuous runtime with adaptive power management—screen dimming, standby mode activation, and auto-shutdown after idle periods comply with ISO 50001-aligned lab sustainability practices.

Sample Compatibility & Compliance

The HBS-4009 accommodates all standard ANSI/SLAS-format 96-well microplates (flat, U, and V bottom), as well as individual strips (1–12 wells). Twenty preloaded plate profiles—including edge-effect compensation for high-curvature wells—ensure accurate tip immersion depth and meniscus alignment. The system complies with GB/T 19001–2016 (equivalent to ISO 9001:2015) quality management standards. Its software architecture conforms to IEC 62304 Class B medical device software requirements, and the embedded firmware carries registered computer software copyright (No. 2022SR0123456). While not FDA 510(k)-cleared, it is routinely deployed in ISO 13485-certified IVD manufacturing QC labs and academic core facilities performing CLIA-waived assays.

Software & Data Management

The onboard 5.6-inch capacitive touchscreen runs a deterministic real-time OS with 200 protocol slots, each supporting parameter versioning, timestamped execution logs, and editable step sequences—including conditional branching (e.g., “if soak > 30 min, then increase shake intensity”). Protocol previews display volumetric flow schematics and cycle timelines prior to run initiation. Audit trail functionality records user ID, timestamp, parameter changes, and error events—fully traceable for GLP/GMP documentation. Data export is supported via USB 2.0 to CSV or XML format; no cloud connectivity or remote access is implemented, preserving data sovereignty in air-gapped environments.

Applications

• ELISA and multiplex immunoassays requiring low carryover and uniform well-to-well washing efficiency.
• Cell-based assays (e.g., calcium flux, cAMP, reporter gene) where mechanical stress from aggressive aspiration must be minimized.
• High-throughput screening (HTS) support workflows involving serial dilution plates and secondary antibody incubations.
• QC release testing of diagnostic kits under Chinese NMPA Guideline No. 2021-123 and EU IVDR Annex II technical documentation requirements.
• Academic research labs performing chromatin immunoprecipitation (ChIP) plate washes or magnetic bead-based nucleic acid purification pre-steps.

FAQ

Does the HBS-4009 support 384-well plates?
No. It is designed exclusively for 96-well format microplates and strips per ANSI/SLAS-1-2004 dimensional specifications.
Can wash parameters be locked to prevent unauthorized modification?
Yes. Administrator-level password protection secures protocol editing, calibration access, and system configuration menus.
Is validation documentation provided for IQ/OQ/PQ execution?
HJ supplies a comprehensive User Requirement Specification (URS) template, Factory Acceptance Test (FAT) report, and blank OQ/PQ worksheets aligned with ASTM E2500-13 and EU GMP Annex 15 principles.
What maintenance is required for long-term reliability?
Daily: Wipe manifold tips and rinse fluid paths with DI water. Quarterly: Replace silicone tubing in dispense/aspirate lines and verify Z-axis encoder linearity using supplied calibration gauge.
How is waste volume monitored?
An ultrasonic level sensor in the integrated 4 L waste reservoir triggers both on-screen alert and audible tone when capacity exceeds 95%, halting further cycles until emptied.